Maple Systems MAPware-7000 - Manual (Page 220)

220 MAPware-7000 Programming Manual
1010-1040, Rev. 02
- 16 random words: this option allows you to randomly select word registers. They do
not have to be in consecutive order and you do not have to allocate 16 registers.
Select 16 consecutive words if you:
a. Plan to configure all or most of the 256 alarm messages available in each
project.
b. Wish to ensure maximum speed and minimize any delays in displaying alarm
messages.
Select 16 random words if you:
a. Do not need 256 alarms and, therefore, do not wish to ‘tie up’ so many registers
in the PLC for alarm messages.
b. Do not have 16 consecutive registers available or would rather separate the
registers into random groups.
Parameter 2 – Auto acknowledge
The acknowledge feature is used to indicate that the plant floor operator has seen an
alarm message. Do this by:
a. Changing the color of the displayed message for an active alarm or
b. Removing the displayed message from the screen if the alarm is no longer active
This parameter provides the option of configuring one bit/coil to acknowledge all alarms
(Acknowledge All) or select unique bit/coils for each alarm message that displays
(Selectable).
Parameter 3 – If memory is full
This option determines how the HMC unit behaves when the memory allocated to
historical alarms is full. Two options are:
a. Erase previous alarms and log from the beginning – this option will erase the
oldest alarms recorded, making room for new alarms that occur.
b. Stop logging- use this option to make sure no prior alarms are lost. However,
when the alarm memory is full, then no new alarms display.
Note: make sure you perform the above steps first before you start creating alarm
messages; you can always return to this menu to change the global alarm settings but if
you do, all alarm messages created are erased: